Hi Christopher. To answer your original question, if you are correctly blackshaded the whole picture should be a uniform if noisy grey on the Red LCD at ISO12800 with no/very minimal gradual shading left to right, up and down.
There should be no stuck pixels or fixed pattern noise visible. You might want to punch in 1:1 to check and look at the HD-SDI out on a larger monitor - this will eliminate the actual Red LCD monitor having a shading/backlight problem!
Eliminate the lens as a factor by using the metal body cap.
If you're still getting a prominent shading after black calibrating at your working temperature, then advise you talk to Red about a check-up.
There should be no stuck pixels or fixed pattern noise visible. You might want to punch in 1:1 to check and look at the HD-SDI out on a larger monitor - this will eliminate the actual Red LCD monitor having a shading/backlight problem!
Eliminate the lens as a factor by using the metal body cap.
If you're still getting a prominent shading after black calibrating at your working temperature, then advise you talk to Red about a check-up.